Kobato. (こばと。 ) is Clamp's latest manga series which premiered in Monthly Sunday Gene-X in January 2005. Seven chapters were released under the title of Kobato.(Kari) (こばと。(仮 ) Kobato. ("Temporary title")), but the series was put on hiatus in late 2005. It returned to publication in Newtype magazine's November 2006 Japanese edition; the story has subsequently been restarted at an earlier point in the original timeline. The story features a mysterious young girl, Hanato Kobato, who works in a local kindergarten.
Story: Kobato is sweet and perky girl, but also extremely naive about the world around her. She has a "mission", which is to fill a mysterious bottle of hers with the suffering from people's hearts so her wish to go a certain place that she desires to go can be granted. However, she has a restriction in that she is not allowed to fall in love with any person whom she heals the heart of.
(source: Wikipedia)